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Author: Aaron Mullally

This lesson will explain the structure of lipids as well as discuss their function in our bodies.

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Developing Effective Teams

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Video Images: Myristic acid image, Public Domain:; Arachidonic acid, Public Domain:; Triglyceride image, Public Domain:; Phospholipid image, Public Domain:; Cholesterol image, Public Domain:

Terms to Know

A lipid made of a glycerol molecule and a fatty acid side chain


An organic molecule made up of glycerol and fatty acids, which is non-polar and does not dissolve easily in water


Does not dissolve easily in water


A type of lipid made up of a hydrophilic head and hydrophobic tail, and is found in cell membranes

Trans Fat

​A type of unsaturated fat which is unhealthy and may lead to health problems


​A type of lipid which is made up of a glycerol molecule and three fatty acid side chains

​Saturated Fat

A type of fat which does not have double bonds in its side chain


​A type of lipid containing only a glycerol molecule

​Unsaturated Fat

​A type of fat which has double bonds in its side chain